Many of us have differing opinions on all things Kardashian, but one thing we can probably agree on is that we love their candidness about beauty problems and beauty treatments. And in the Season 17 premiere of Keeping Up With the Kardashians Sunday night, we got a major dose of just that.

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As Kim was casually chatting with Kourtney, she spotted a bald patch on the top of Kourtney's head and immediately freaked out. Kourtney, you have a really big spot on the top of your head, Kim said. Look down, Kourtney. Oh my god, Im afraid for your life. Have you seen that? Kourtney responded, No, but I feel it, and attributed it to the sky-high (and apparently incredibly tight) ponytail she had worn at a recentgala. Its a hole in my head.I swear its from my ponytailit was so tight that I had a bump on my head like this [she used her hand to demonstrate a big bump].

Crazy enough, that canactually happen. This is called traction alopecia, which is a type of hair loss resulting from a constant pulling force being applied to the hair," says Beverly Hills, CA facial plastic surgeon and hair restoration specialist Natalie Attenello, MD. "This is commonly seen in people who consistently wear tight ponytails, pigtails or braids."

To fill in the bald area, Kourtney opted for platelet-rich plasma (PRP) injections, which is becoming an increasingly popular nonsurgical treatment for thinning hair and hair loss. Today Im getting PRP, which is where they take your blood and spin it and they use your plasma and they inject it in my head for my hair to grow back, she said on the show at a visit to her doctor, who assured her it could take a while for the hair to grow back.

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For those interested in PRP for hair loss, New York facial plastic surgeon Jennifer Levine, MD recommends three treatments spaced a month apart. "Usually you can see some difference after the second treatment, but it may take six months to experience the full effect." Dr. Attenello adds, "If there is a minimal improvement seen, a more definitive option of a hair transplant may be considered."

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Kourtney Kardashian Just Got PRP to Fix a Bald Spot - NewBeauty Magazine